king suites sleep 3 for the onsite hotels.
the Hospitality Suite is very expensive but it can accomadate 6, but you need to book a connecting room with it.
this is from the universal hotel website:
MAXIMUM OCCUPANCY PER GUEST ROOM
King Rooms - up to 3 guests* (rollaway rental needed for 3rd person)
Double Queen Rooms - up to 5 guests* (rollaway rental needed for 5th person)
Deluxe King Rooms - up to 3 guests* (rollaway rental needed for 3rd person)
Deluxe Double Queen Rooms - up to 5 guests* (rollaway rental needed for 5th person)
Kids Suite - up to 5 guests* (rollaway rental needed for 5th person)
1 Bedroom Portofino Suite - up to 5 guests* (bedding for 5th person would require a rollaway rental or use of the sleeper sofa)
1 Bedroom Villa Suite - up to 5 guests* (bedding for 5th person would require a rollaway rental or use of the sleeper sofa)
1 Bedroom Hospitality Suite - up to 5 or 7 guests, depending on booked connecting room
*Maximum occupancies may require a rollaway at $25 per day. Only one rollaway is allowed per room. King Rooms have bedding for 2, requires rollaway for 3. Double Queen have bedding for 4, requires rollaway for 5. Available on a first come first serve basis. Additional charges apply for more than 2 adults guests per room.